Definition of Sets

Q.

Which of the following best describes an array_______.

1. Array is not a data structure

2. Arrays are immutable once initialised

3. Container of objects of similar types

4. A data structure that shows a hierarchical behavior.

Q. In a group of 450 people , 200 speak hindi only and 180 speak english only .if each person speak at least one language then , How many people can speak english How many people speak both

Q. The set of points common to any 2 parallel lines is a finite set.

1. True
2. False

Q. Which of the following represent Equal sets?

1. K = {1, 2, 3} and L = {a, b, c}
2. Both A and B.
3. K = {1, 2, 3} and L = {2, 3, 1}
4. K = {1, 2, 3} and L = {1, 2, 2, 3}

Q. 41. Is 0 multiple of every number?

Q.

List the elements of the following sets: (i) $\{x:x^2-2x-3=0\}$

(ii) $\{x:x=2y+5;y\in Nand2\le y<6\}$

(iii) $\{x:x\text{is a factor of 24}\}$

(iv)$\{x:x\in Zand{x}^2\le 4\}$

(v) $\{x:3x-2\le 10,x\in N\}$

(vi)$\{x:4-2x>-6,x\in Z\}$

Q. Universal set $\text{U}=\{x:x\text{is an even natural number and}$$x<15\}$
If $\text{A}=\{x:x=4n,x\le 12\text{and}n\in \text{N}\}$, then ${\text{A}}^{\prime }$ is:

1. $\{2,4,6,8,10,12\}$
2. $\{4,8,12\}$
3. $\{1,3,5,7,9,11,13\}$
4. $\{2,6,10,14\}$

Q. Golu’s relatives did not answer his questions because
(i) they were shy.
(ii) the questions were too difficult.
(iii) Golu was a naughty baby.

Q. Choose the option that correctly conveys the meaning of the given sentence:
Seldom do buses stop here.

1. Buses do stop here often.
2. Buses never stop here.
3. Buses do not stop here often.
4. Buses stop here regularly.

Q. (a)The question is often raised (b)that whether it is desirable to send Indian students abroad (c)since they rarely return. (d)No error.

1. a
2. b
3. c
4. No error

Q.

All equal sets are ___ .

1. Null

2. Singleton

3. Joint

4. Equivalent

Q. Is it correct to say "me and my family" or "my family and I"?

Q.

The group of intelligent students in a class is __________.

1. not a well defined collection

2. a null set

3. a finite set

4. a well defined collection

Q. Which of the following collections is a set?

1. The collection of all the factors of number 56.
2. The collection of all good dishes in India.
3. The collection of states in the Indian Union.
4. The collection of all great prime ministers in India.